Merge tag 'devicetree-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / mfd / aspeed-lpc.txt

diff --git a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
index d0a38ba..936aa10 100644 (file)
--- a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
+++ b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
@@ -9,13 +9,7 @@ primary use case of the Aspeed LPC controller is as a slave on the bus
 conditions it can also take the role of bus master.
 
 The LPC controller is represented as a multi-function device to account for the
-mix of functionality it provides. The principle split is between the register
-layout at the start of the I/O space which is, to quote the Aspeed datasheet,
-"basically compatible with the [LPC registers from the] popular BMC controller
-H8S/2168[1]", and everything else, where everything else is an eclectic
-collection of functions with a esoteric register layout. "Everything else",
-here labeled the "host" portion of the controller, includes, but is not limited
-to:
+mix of functionality, which includes, but is not limited to:
 
 * An IPMI Block Transfer[2] Controller
 
@@ -44,80 +38,36 @@ Required properties
 ===================
 
 - compatible:  One of:
-               "aspeed,ast2400-lpc", "simple-mfd"
-               "aspeed,ast2500-lpc", "simple-mfd"
-               "aspeed,ast2600-lpc", "simple-mfd"
+               "aspeed,ast2400-lpc-v2", "simple-mfd", "syscon"
+               "aspeed,ast2500-lpc-v2", "simple-mfd", "syscon"
+               "aspeed,ast2600-lpc-v2", "simple-mfd", "syscon"
 
 - reg:         contains the physical address and length values of the Aspeed
                 LPC memory region.
 
 - #address-cells: <1>
 - #size-cells: <1>
-- ranges:      Maps 0 to the physical address and length of the LPC memory
-                region
-
-Required LPC Child nodes
-========================
-
-BMC Node
---------
-
-- compatible:  One of:
-               "aspeed,ast2400-lpc-bmc"
-               "aspeed,ast2500-lpc-bmc"
-               "aspeed,ast2600-lpc-bmc"
-
-- reg:         contains the physical address and length values of the
-                H8S/2168-compatible LPC controller memory region
-
-Host Node
----------
-
-- compatible:   One of:
-               "aspeed,ast2400-lpc-host", "simple-mfd", "syscon"
-               "aspeed,ast2500-lpc-host", "simple-mfd", "syscon"
-               "aspeed,ast2600-lpc-host", "simple-mfd", "syscon"
-
-- reg:         contains the address and length values of the host-related
-                register space for the Aspeed LPC controller
-
-- #address-cells: <1>
-- #size-cells: <1>
-- ranges:      Maps 0 to the address and length of the host-related LPC memory
+- ranges:      Maps 0 to the physical address and length of the LPC memory
                 region
 
 Example:
 
 lpc: lpc@1e789000 {
-       compatible = "aspeed,ast2500-lpc", "simple-mfd";
+       compatible = "aspeed,ast2500-lpc-v2", "simple-mfd", "syscon";
        reg = <0x1e789000 0x1000>;
 
        #address-cells = <1>;
        #size-cells = <1>;
        ranges = <0x0 0x1e789000 0x1000>;
 
-       lpc_bmc: lpc-bmc@0 {
-               compatible = "aspeed,ast2500-lpc-bmc";
+       lpc_snoop: lpc-snoop@0 {
+               compatible = "aspeed,ast2600-lpc-snoop";
                reg = <0x0 0x80>;
-       };
-
-       lpc_host: lpc-host@80 {
-               compatible = "aspeed,ast2500-lpc-host", "simple-mfd", "syscon";
-               reg = <0x80 0x1e0>;
-               reg-io-width = <4>;
-
-               #address-cells = <1>;
-               #size-cells = <1>;
-               ranges = <0x0 0x80 0x1e0>;
+               interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+               snoop-ports = <0x80>;
        };
 };
 
-BMC Node Children
-==================
-
-
-Host Node Children
-==================
 
 LPC Host Interface Controller
 -------------------
@@ -149,14 +99,12 @@ Optional properties:
 
 Example:
 
-lpc-host@80 {
-       lpc_ctrl: lpc-ctrl@0 {
-               compatible = "aspeed,ast2500-lpc-ctrl";
-               reg = <0x0 0x80>;
-               clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
-               memory-region = <&flash_memory>;
-               flash = <&spi>;
-       };
+lpc_ctrl: lpc-ctrl@80 {
+       compatible = "aspeed,ast2500-lpc-ctrl";
+       reg = <0x80 0x80>;
+       clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
+       memory-region = <&flash_memory>;
+       flash = <&spi>;
 };
 
 LPC Host Controller
@@ -179,9 +127,9 @@ Required properties:
 
 Example:
 
-lhc: lhc@20 {
+lhc: lhc@a0 {
        compatible = "aspeed,ast2500-lhc";
-       reg = <0x20 0x24 0x48 0x8>;
+       reg = <0xa0 0x24 0xc8 0x8>;
 };
 
 LPC reset control
@@ -192,16 +140,18 @@ state of the LPC bus. Some systems may chose to modify this configuration.
 
 Required properties:
 
- - compatible:         "aspeed,ast2600-lpc-reset" or
-                       "aspeed,ast2500-lpc-reset"
-                       "aspeed,ast2400-lpc-reset"
+ - compatible:         One of:
+                       "aspeed,ast2600-lpc-reset";
+                       "aspeed,ast2500-lpc-reset";
+                       "aspeed,ast2400-lpc-reset";
+
  - reg:                        offset and length of the IP in the LHC memory region
  - #reset-controller   indicates the number of reset cells expected
 
 Example:
 
-lpc_reset: reset-controller@18 {
+lpc_reset: reset-controller@98 {
         compatible = "aspeed,ast2500-lpc-reset";
-        reg = <0x18 0x4>;
+        reg = <0x98 0x4>;
         #reset-cells = <1>;
 };